ATE144618T1 - HYDRAULIC CYLINDER FOR A FORCE MEASUREMENT MACHINE - Google Patents

HYDRAULIC CYLINDER FOR A FORCE MEASUREMENT MACHINE

Info

Publication number
ATE144618T1
ATE144618T1 AT93112101T AT93112101T ATE144618T1 AT E144618 T1 ATE144618 T1 AT E144618T1 AT 93112101 T AT93112101 T AT 93112101T AT 93112101 T AT93112101 T AT 93112101T AT E144618 T1 ATE144618 T1 AT E144618T1
Authority
AT
Austria
Prior art keywords
ring
sealing
hydraulic cylinder
cylinder ring
cylinder
Prior art date
Application number
AT93112101T
Other languages
German (de)
Inventor
Klaus Baethke
Original Assignee
Gassmann Theiss Messtech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gassmann Theiss Messtech filed Critical Gassmann Theiss Messtech
Application granted granted Critical
Publication of ATE144618T1 publication Critical patent/ATE144618T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Actuator (AREA)

Abstract

A hydraulic cylinder for a standard force measuring machine has a rotatably mounted cylinder ring (9) which is connected for drive purposes to a rotary drive (15) and has two elastically deformable sealing rings (10, 12). The first sealing ring (10) bears sealingly against a working piston (8) projecting into the cylinder ring (9); the second sealing ring (12) bears sealingly against a guide piston (11) projecting in an opposing fashion into the cylinder ring (9). The use of elastically deformable sealing rings (10, 12) avoids a sealing gap which would lead to a change in the effective piston area and to flow forces in the axial direction. Because of the rotary motion of the cylinder ring (9), the friction forces occurring on the sealing rings (10, 12) extend only in the circumferential direction and have no effect on the axial force. <IMAGE>
AT93112101T 1992-09-10 1993-07-29 HYDRAULIC CYLINDER FOR A FORCE MEASUREMENT MACHINE ATE144618T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4230250A DE4230250A1 (en) 1992-09-10 1992-09-10 Hydraulic cylinder for a force measuring machine

Publications (1)

Publication Number Publication Date
ATE144618T1 true ATE144618T1 (en) 1996-11-15

Family

ID=6467657

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93112101T ATE144618T1 (en) 1992-09-10 1993-07-29 HYDRAULIC CYLINDER FOR A FORCE MEASUREMENT MACHINE

Country Status (4)

Country Link
EP (1) EP0586859B1 (en)
AT (1) ATE144618T1 (en)
DE (2) DE4230250A1 (en)
ES (1) ES2094971T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19721725C2 (en) * 1997-05-24 2000-10-05 Erichsen Gmbh & Co Kg Device with two hydraulic cylinder arrangements
US7078937B2 (en) 2003-12-17 2006-07-18 3M Innovative Properties Company Logic circuitry powered by partially rectified ac waveform
DE102007036214B8 (en) * 2006-12-07 2013-12-19 Council Of Scientific & Industrial Research Automated dead weight measuring machine for the calibration of strain gauges
CN102879216A (en) * 2012-09-24 2013-01-16 中南大学 Comprehensive dynamic rubbing characteristic testing system for ultralow-speed operated hydraulic press
CN103728095B (en) * 2014-01-10 2016-01-13 浙江大学 Negative step force pilot system
CN118934764A (en) * 2020-09-08 2024-11-12 北京康斯特仪表科技股份有限公司 Dynamic friction boost pressure regulating method and device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138170C2 (en) * 1981-09-25 1984-12-13 A.M. Erichsen Gmbh, 5600 Wuppertal Hydraulic normal force machine
US4815313A (en) * 1987-11-16 1989-03-28 Abbott Laboratories Syringe pressure calibration reference
EP0403677B1 (en) * 1989-06-22 1993-04-14 A. M. Erichsen Gmbh Measuring device using standard forces and hydraulic force transmission

Also Published As

Publication number Publication date
ES2094971T3 (en) 1997-02-01
DE59304272D1 (en) 1996-11-28
EP0586859A2 (en) 1994-03-16
DE4230250A1 (en) 1994-03-17
EP0586859A3 (en) 1994-04-13
EP0586859B1 (en) 1996-10-23

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee